Cleaning implement



Nov. 20,1933 1 1,475,118 G. A. HOYEM CLEANING IMPLEMEN-T Original FiledSept'p28 1921 m INVENTOR l ATTORNEYS Mill/l. BY

atented Nov. 26, 1923.

ill T ere 'r raise.

CLEANING ITEPLEMENT.

Original application filed September 28, 1921, Serial No. 503,904.Divided and this application filed May T 0 all whom it may concern:

Be it known that I, Gnoncn ART1rUn Hornnr, a citizen of the UnitedStates, and a resident of Lennep, in the county of Meagher and State ofMontana, have invented a new and Improved Cleaning Implement, of whichthe following is a full, clear, and exact description.

This invention relates to a cleaning imend which shall be especiallyuseful, as I have found in practice, when used either before or afterthe application of a cleaning device for scraping out the internalsurfaces of the spark plug.

Such a scraping device is described and claimed in my U. S. LettersPatent No. 1,461,904, of July 17, 1923, of which the present applicationis a division; and in that application there is disclosed, but notclaimed, the brush-type working end for a spark plug cleaning device asherein claimed as well as disclosed.

A further object is to provide a brush or bristle structure, itself ofan inherently resilient type, to cooperate with the preferably slightlystiffer resilient support for the brush structure afforded by saidhandle, thereby to provide a cleaning device vof the brush or bristlecarrying type adapted to be applied to the interior of'a spark plug withmaximum efficiency and a minimum amount of brushing manipulation.

Still further objects of the invention, and the invention itself will bebetter under-- stood from the following description, when taken inconnection with the accompanying drawing illustrating, but merely by wayof example, one practical embodiment of the invention.

In said draWing- Figure 1 is a perspective view of a cleaning implementembodying my improved construction and showing the same in use;

Figure 2 is a similar perspective view Serial No. 637,832.

showing all of the parts of the cleaning implement, and

Figure 3 is a transverse sectional View taken along the line 3-3 and inthe di rection of the arrows indicated in Figure The numeral 5 indicatesthe body of the implement, which is in the nature of a metal sleeve orelongate hollow handle, the end portions of which handle are extended toprovide two pairs of legs 6 and 7. It will be understood that by thisconstruction each one of both pairs of legs will incorporate a certainamount of resiliency when pressed to converge toward the other leg ofits pair.

Referring now to the parts of the device striking out portions of suchheads. the

cleaning device is shown applied in Figure 1, the same has its scraperend inserted 1n the sparking chamber of a spark plug 9;

say with the cleaner at rest after the concluto complete a scrapingoperation found to be a desirable preliminary to the application of thebrush end of the cleaner to the interior of the spark plug.

Referring now to the features of construction of the unitary implementof Figure 2 having a special relation to the invention of the presentapplication, it will be seen that legs 6 have their outer ends 12 bentupon themselves; this being a preferable construction for mounting abrush element for projection beyond the free end of each leg, it beingunderstood, however, that such elements may be secured in any desiredmanner.

Now examining the brush elements, it will be seen that each preferablycomprises a single length of a previously known type of resilientlyflexible twisted bristle carrying wire. The single wire hereconstituting each brush element is reversely bent a plurali'ty of timesso as to form substantially the letter W and to present mutuallyconverging terminal portions for anchorage by the bent over terminalportion 12 of a leg 6.

In operation, it will, of course, be understood that on reversing thebody or handle from the position shown in Figure l. and inserting thebrush end of the implement into the interior of plug 9, in such a waythat ground electrode 9 of the plug is straddled by legs 6, back andforth partial rotations of the implement will effectually clean out allpreviously loosened carbon deposits, as

deposits loosened by a preliminary application of the scraper end of theimplement. It has been found in practice that very few such rotations ofthe implement, rapidly performed, satisfactorily frees the plug of allcarbo deposits which would otherwise have a deleterious effect on theoperating efficiency of the engine carrying the plug. t is pointed outthat by virtue of the peculiar construction of the brush elementsthemselves and or" the coacting parts of the implement, it would bepractically impossible for any of the loosened carbon deposits to settleinto parts of the implement in such a way as to interfere with thecleaning efliciency thereof, or in such places thereon or therein as tomake it diflicult thoroughly, to

clean the implement after the latter has been cleaning implement forspark plugs including a handle portion, and a cleaning element ofi'setfrom said handle portion, said element comprising an elongate bristlecarrying member, said element being reversely bent on itself in itsbristle carrying portion.

2. As a new article of manufacture, a cleaning implement tor spark plugsincluding a handle portion, and a cleaning element offset from saidhandle portion, said element comprising an elongate bristle carryingmember, said element being a twisted wire bristle carrying member benton itself and anchored at its opposite ends to the handle portion, thehandle portion carrying a reduced resilient terminal portion to whichsaid element is so anchored.

3. As a new article of manufacture, a cleaning implement for spark plugsincludinga pair of legs resiliently connected, and cleaning elementscarried by the legs, such elements comprising a plurality of bristlecarrying members, said legs being carried at opposite sides of one endof an elongate handle formed of sheet metal, thereby to permit shapingof the opposite end portions of the handle into scraper elements.

4. A cleaning implement, including a sleeve, legs extending from theends of said sleeve, and brushes attached to said legs, one brush oneach leg, each brush formed into a substantially W-shaped body portion.

GEORGE ARTHUR HOYEM.

